# Toshiba CF27F50 CRT RGB mod

This tutorial should work for

  • Toshiba CF27F50
  • Toshiba CL29F50

WARNING

I abandoned this RGB mod. There was interference in the RGB signal and couldn't justify the effort needed to fix it. Reddit discussion (opens new window)

# CRT safety

DANGER

You can die doing this! So read carefully! CRT TV is not a toy. Do not open a CRT TV. If you don't have any prior knowledge about handling high voltage devices, this guide is not for you. CRT TV contains high enough voltage (20,000+ V) and current to be deadly, even when it is turned off.

READ THIS BEFORE CONTINUING

# Plan of attack

READ THIS TO PREPARE

# Theory

Sometimes it is nice to know the theory behind the mod. I have put this on a separate page. This shows how the various resistor values are calculated.

READ THE RGB MODDING THEORY

# Service manuals

# Specs

# CF27F50

  • Chassis: TAC 9618
  • Manufactured: December 1996
  • Power: 93 Watts
  • Chroma Chip: TA1223AN
  • OSD Chip: TMP87CM34BN

# Schematics

img

Remove resistors RR90, RR91 and RR92. Inject R, G, B signals respectively. Don't remove grounding resistor on the blanking line. See picture aboce to see where to inject the blanking signal.